1145787506 has 8 divisors (see below), whose sum is σ = 1777946220. Its totient is φ = 553138768.

The previous prime is 1145787499. The next prime is 1145787529. The reversal of 1145787506 is 6057875411.

It can be written as a sum of positive squares in 2 ways, for example, as 1143048481 + 2739025 = 33809^2 + 1655^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9877421 + ... + 9877536.

Almost surely, 2^1145787506 is an apocalyptic number.

1145787506 is a deficient number, since it is larger than the sum of its proper divisors (632158714).

1145787506 is a wasteful number, since it uses less digits than its factorization.

1145787506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19754988.

The product of its (nonzero) digits is 235200, while the sum is 44.

The square root of 1145787506 is about 33849.4830979736. The cubic root of 1145787506 is about 1046.4087457078.

The spelling of 1145787506 in words is "one billion, one hundred forty-five million, seven hundred eighty-seven thousand, five hundred six".